The killpets command is a quick and convenient way
to get rid of all your pets when they are no longer
useful or are getting in the way.  Any equipment
they had will be left behind, but you will get no
experience for their death.  However, it kills them
instantaneously.

If a name is specified then only pets with that 
name will be killed, eg killpets bat will kill bats
but not bees. If a number is specified, the pet 
corresponding to that number is killed.